1. FM Ausubel, R Brent, RE Kingston, DD Moore, JG Seidman, JA Smith and K Struhl, Current Protocols in Molecular Biology. Media, PA: John Wiley (1992).
2. ND Bordoloi and CM Sarma, In vitro callus induction and plantlet regeneration of pineapple. J. Assam Sci. Soc. 35 (1993) 41-45
3. C Cazzonelli, A Cavallaro and JR Botella, Cloning and characterisation of ripening-induced ethylene biosynthetic genes from non-climacteric pineapple (Ananas comosus) fruits. Aust. J. Plant Physiol. 25 (1998) 513-518
4. AH Christiensen, RA Sharrock and PH Quail, Maize polyubiquitin genes: structure, thermal perturbation of expression and transcript splicing, and promoter activity following transfer to protoplasts by electroporation. Plant Mol. Biol. 18 (1992) 675-689
5. JL Collins, The Pineapple. London: Leonard Hill (1968).